It's not very easy to break WEP using Windows. You'd probably need one of the AirPcap adapters, which are terribly overpriced for their crappy performance and the existence of much cheaper, better alternatives. I'd suggest doing what someone else said and boot up a linux live CD with aircrack on it.

Its seems pretty easy to do according to this youtube guy i stumbled across.He's got some process to set it up but the videos are all there.Take a look. Looks legit to me.Link --> http://www.youtube.com/user/Babolatace

You could sit there and try lots of passwords (note: this is probably illegal). From a purely theoritical viewpoint, wifi should: be encrypted, have strong passwords. So, if you want to break that, you'll need to find out how to a) work out the encryption, b) break said encryption, c) break password.

A few places to start looking: google. Google is *the* place to be (and one of my few friends, so be nice to her. Yes, google is a her.) You'll need to know what to search, tho.. try 'cracking', 'wireless hacking', 'wireless sniffing'. http://en.wikipedia.org/wiki/Wireless_security :: To break *anything*, you should know *how* that thing works. Learn. Go and read about wireless, how it works, how users are authenticated. Learn how the data is sent from a to b. Wikipedia is a good place to start (and dont forget the links at the bottom - they are a good place to go after youve read wiki

Try looking for pentesting. There are lots of places that will help you secure networks, and wifi pentesting (that is, deliberatly trying to penetrate your own network to discover its vunerabilities so you can fix them) is a fairly well discusses area, if you know where to go.

I think what you are asking is very similar to the question "how do i wardrive? What tools do i use?" Try finding the answers to that in google.

Please note, I dont think that using any of this information, slight as it may be, to break other peoples networks is a good (or leagal) idea. Use it for your own network to test and harden it, and for purely educational purposes.

But if you use a commbination of commview and aircrack-ng then gaining access to WEP secured networks is really quite easy.

I have a cracked version of commview, but the WEP key recovery part don't work as it should, however I have used comview to gather packets, used the node reassociation tool to force the sending of Broadcast packets and then used them to inject packets back in to the network thus increasing the amount of packets I was collecting. After collecting the packets I then exported them in TCP or was it TPC format ? opened aircrack-ng 1.0 and used AircrackGUI I cracked the first of 5 WEP networks in seconds (spent a couple of hurs collecting packets) and have now cracked all 5 WEP networks in range - it is possible to crack the WPA networks as well, although I have not tried this yet, but the same tool you use for node reassociation also initiates a new key exchange thereby getting you the EAPOL keys (you need a minumum of 2) and a load of packets, along with a good word list and hope that the WPA networks are using standard dictionary passwords !

I could post a link as to where to download the cracked version of commview but not sure if that is allowed or not - so if an admin wants to say yes or no to that ......

This thread is beyond dead. I know you're new, but it's general forum etiquette not to revive threads that haven't had responses for a long time. Let's let this thread pass peacefully into the afterlife, shall we?